Modules form a substantial building block in the context of platform strategies to summarize elements and components in a network and as if equal parts to execute. Modules however did not only develop with the conversion of platform strategies. Seats or sun roofs, which worked satisfactorily as modular construction in the market, are already in use for many years. Frontend -, door -, axle and cockpit modules fall under the modular constructions, which only occurred recently the market. In the future drive train and complete body modules are conceivable.